package edu.xcdq;

import java.util.Scanner;

public class Demo05 {
    public static void main(String[] args) {
       Scanner scanner = new Scanner(System.in);
       System.out.println("请输入等腰三角形的行数：");
       int  hangshu =scanner.nextInt();
        for (int i= 1 ; i <=hangshu ; i ++) {
            for (int j = 0 ; j < hangshu-i ; j++){
                System.out.print("");
            }
            for (int j = 0 ;j < 2 * i-1;j++){
                System.out.print("*");
            }
            System.out.println();
        }
    }
}